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Tema [17]
2 years ago
6

Write a linear equation that is parallel to

Mathematics
1 answer:
san4es73 [151]2 years ago
5 0

Answer:

2y=11 - 5x

Step-by-step explanation:

An equation that is parallel shares the same gradient thus

2y= -5x - 8

y = -5/2x- 4

gradient m = -5/2

substitute value of m and the co-ordinates into a new linear equation

y = mx + c

-9 = (-5/2)(8) + c

c = 20-9 = 11

thus y = -5/2x + 11

2y=11 - 5x

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Question 12 (1 point) Given P(A) 0.34, P(A and B) 0.27, P(A or B) 0.44, what is P(B)? Answer in decimal form. Round to 2 decimal
Tema [17]

Answer:  The required probability of event B is P(B) = 0.37.

Step-by-step explanation:  For two events A and B, we are given the following probabilities :

P(A) = 0.34,    P(A ∩ B) = 0.27   and   P(A ∪ B) = 0.44.

We are to find the probability of event B, P(B) = ?

From the laws of probability, we have

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\\Rightarrow 0.44=0.34+P(B)-0.27\\\\\Rightarrow 0.44=0.07+P(B)\\\\\Rightarrow P(B)=0.44-0.07\\\\\Rightarrow P(B)=0.37.

Thus, the required probability of event B is P(B) = 0.37.

6 0
2 years ago
60 - 3d + 20 - 6 = 4d
iragen [17]
60-3d + 20-6 =4d
74-3d =4d
-3d =4d -74
-7d = -74
D=74/7
4 0
2 years ago
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Wich equation shows y + 1/5 = 3x in standard form
Katen [24]

15x - 5y = 1 it's B in standard form



4 0
3 years ago
What is 2.5/10 (fraction) simplified?
sladkih [1.3K]

Answer:

-1

—— = -0.25000

 4            

Step-by-step explanation:

5 0
3 years ago
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Need help please! Not sure how to do this
Kisachek [45]
This problem is fairly simple if you know the exponential equation, you start with y=78(.17)^x. the you put 10=78(.17)^x, then you solve for x 

10=78(.17)^x 
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-68=.17^x 
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3 0
3 years ago
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